Combined sectional post and lock.



PATENTBD MAR. 22, 1904.

A. D. 'HULQUIS'L COMBINED SEGTIONAL POST AND LOCK.

APPLICATION FILED JUNE 1o, 1903.

Nouonm'..

NTTTLD STATES.

Patented March 22, 1904.

PATENT OFFICE.

ANDREV D. iI-IULQUIST, OF CHICAGO, ILLINOIS, ASSIGNOR TO J. S. MCDONALD,OF CHICAGO, ILLINOIS.

COMBINED SECTIONAL POST AND LOCK.

SPECIFICATION forming part of Letters Patent No. r755,008, dated March22, 1904.

Application filed June 10, 1903. Serial No. 160,908. (No model.)

T0 all whom/ t nea/y con/cern:

Be it known that I, ANDREW D. HUTQUIST, a citizen of the United States,and a resident of Chicago,in the county of Cook and State of Illinois,have invented certain new and useful Improvements in a CombinedSectional Post and Lock for Connecting the Adjustable Backs ofLoose-Leafed Ledgers, Account-Books, Record-Books, Files, &c., of whichthe following is a full, clear, and exact description.

Heretofore sectional posts connecting the backs of loose-leafed bookshave been used only in conjunction with manually-operated locks. Theobject `of my invention is to use such posts in conjunction with anautomatic lock and to combine the recognized advantage of both of thesefeatures ina simple, economical, and efficient manner. This I accomplishby the means hereinafter fully described and as particularly pointed outin the claims.

In the drawings, Figure l isa perspective view of my invention detachedfrom theclamping-plates. Fig. 2 is a longitudinal central sectionthrough the same and the plates to which the two principal parts aresecured, showing them locked. Fig. 8 is a similar view showing theposition of the parts when the book is reversed and they are unlocked.Fig. 4C is a perspective view of one of the sections of said tube.

Reference being had to the accompanying drawings, A and B represent theclampingplates of the backs of loose-leafed books which have the coversflexibly connected thereto. Secured to and projecting at right anglesfrom plate A is a bolt C, the unsecured end of which is greater indiameter than the remainder of its body and is provided with one or moreelongated pockets a, which are preferably arranged in the circumferencethereof in a plane oblique to the axis of the bolt. These pockets areshallowest at the ends thereof nearest the extremity of the bolt andgradually increase in depth as they extend toward the opposite ends.This bolt extends longitudinally and centrally into the tubular post,which consists of two or more sections D and E, substantially as shown.In the drawings one of these sections D has one end suitably secured inplate B in alinement with the bolt, and its end opposite said plate isstepped and screw-threaded, and onto this stepped screwthreaded portionZ the screw-threaded exteriorly-stepped end e of section E is screwed.The opposite end of this section E is stepped to a less diameter andscrew-threaded similar to the end portion l of the section D, and ifdesired another section similar to itself may be screwed onto itsscrew-threaded stepped end to elongate it to the extent desired. In

the drawings, however, an end sectional tubing F is screwed thereon,which is preferably of a greater length than sections D and E and hasits inner circumference provided with a circumferential groove g, whichis preferably spiral. The end of tube F attached to section E is steppedexteriorly to a less diameter and provided with a screw-threaded.portionto engage the adjacent screw-threaded end of section E; but theopposite end thereof has its annular edges flanged inward, so as torestrict the opening therethrough to a diameter sufficient to permit thebody of the bolt to pass and move freely therethrough, but prevents thev withdrawal of the bolt from said tube. The length of the interiorlycorrugated or grooved portion of tube F corresponds to the length of thebolt, and when the plate A is uppermostthe small balls Gr, of steel orother suitable material, which are seated in the pockets a, gravitatetoward the extremity of the bolt into the shallowest portion of the sameand crowd into the adjacent. corrugation of the tube F and between thesame and the head of the bolt and lock said bolt and tube, so as toprevent the further separation of the tube; but when the position of theplates is reversed and plate B is uppermost the ball when the plates arecompressed toward each other slightly will gravitate into the deeperportion of the pockets farthest from the extremity of the bolt and beout of engagement with the tube F, whereupon the plates may be separateduntil the shoulders of the head of the bolt impinge againstand arestopped by the margins of the respective opening in the end of said tubefarthest from the tube E. The bore of sections D and' F of the tube issmooth, and the circumference of all ofthe sections I), E, and F is thesame, so as to make the diameter of the section of tube the samethroughout its length. The sectional tube may be increased in length ordiminished by the addition of sections similar to section E until thedesired length is obtained, or the length of said sectional tube may bedecreased by unscrewing and removing such sections from the tube.

The bolt C may, if desired, be secured rigidly in the clamping-plate A;but I prefer to make it rotatable, so that when the clamping-plates areforced together as far as they will go by pressing said plates togetherand then locked any remaining lost motion or loosening can be taken upby screwing the bolt, so to speak, farther into the corrugated endsection of the tube. This I accomplish by using a screw H, which ispassed 'from -the outside through a countersunk opening in said plateand tapped longitudinally and centrally into the adjacent end of thebolt. This screw enters the bolt far enough to hold it in its properrelative position to the sectional tube and yet lets it remainsuiiiciently loose so that by manipulating said screw with ascrew-driver or other suitable device the bolt can be rotated for thepurpose stated.

What I claim as new, and desire to secure by Letters Patent, is

l. A combined sectional post and lock comprising two clamping-plates; ajointed tube one section of which is suitably secured to and projectsfrom one of said plates and the opposite end section of which isremovably secured thereto; a bolt secured to the other plate whichextends longitudinally into the last-mentioned end section of said tube;and means for interlocking said tube and bolt.

2. A combined sectional post and lock comprising two clamping-plates; ajointed tube one section of which is suitably secured to and projectsfrom one of said plates and the opposite end section of which isremovably secured thereto; abolt secured to the other plate whichextends longitudinally into the last-mentioned end section of said tube;and automatic means for interlocking said tube and bolt.

3. A combined sectional post and lock comprising two clamping-plates; ajointed tube consisting of a section suitably secured to and projectingfrom one of said plates, an opposite end section, and an intermediatesection removably secured to said first-mentioned section at one end andhaving said end section removably secured to its opposite end; a boltsecured to the other plate and extending longitudinally into said endsection; and means for interlocking said tube and bolt.

4. A combined sectionalpost and lock comprising two clamping-plates; ajointed tube consisting of a section suitably secured to and projectingfrom one of said plates, an opposite end section, and an intermediatesection removably secured to said first-mentionedsection at one end andhaving' said end section removably secured to its opposite end; a boltsecured to the other plate which extends longitudinally into said endsection; and automaltic means for interlocking said tube and bo t.

5. A combined sectional post and lock comprising two clamping-plates;atube consisting' of several removably-connected sections secured to andprojecting from one of said plates; a bolt secured to and projectingfrom the other plate into said tube; and independent means for lockingsaid bolt to said tube.

6. A combined sectional post and lock comprising two clamping-plates; ajointed tube one section of which is suitably secured to and projectsfrom one of said plates and the opposite end section of which isremovably secured thereto; a bolt secured to the other plate andextending longitudinally into the lastunentioned end section of saidtube; and means capable of movement in directions transverse to eachother for interlocking said tubeand bolt.

7. A combined sectional post and lock comprising two clamping-plates; ajointed tube one section of which is suitably secured to and projectsfrom one of said plates and the opposite end section of which isremovably secured thereto; a rotatable bolt secured to the other platewhich extends longitudinally into the last-mentioned end section of saidtube; and means for interlocking said tube and bolt.

8. A combined sectional post and lock comprising two clamping-plates; ajointed tube one section of which is suitably secured to and projectsfrom one of said plates and the opposite end section of which isremovably secured thereto; a rotatable bolt secured to the other platewhich extends longitudinally into the last-mentioned end section of saidtube; and means capable of movement in directions transverse to eachother for interlocking said tube and bolt.

9. A combined sectional post and lock comprising two clamping-plates; ajointed tube one section of which is suitably secured to and projectsfrom one of said plates, and the opposite end section is removablysecured thereto and has an uneven interior surface; a bolt secured tothe other plate which extends into said end section and a ball forinterlocking said bolt and tube.

10. A combined sectional post and lock comprising two clamping-plates; ajointed tube one section of which is suitably secured to and projectsfrom one of said plates, and the opposite end section is removablysecured thereto and has a circumferentially-corrugated intcrior surface;a rotatable bolt secured to the other plate which extends into said endscction; and a ball for interlocking said bolt and tube.

11. A combined sectional post and lock comprising two clamping-plates; ajointed" tube IOO IIO

one section of which is suitably secured to and projects from one ofsaid plates, and the opposite end section is removably secured theretoand has an uneven interior surface; a bolt secured to the other platewhich extends into said end section having longitudinally disposedpockets; and a ball seated in each of said pockets for interlocking saidbolt and tube.

l2. A combined sectional post and lock comprising two clamping-plates; ajointed tube one section of which is suitably secured to and projectsfrom one of said plates, and the opposite end section is removablysecured thereto, the opening in the unsecured end of which is restrictedin diameter, and has an uneven interior surface; a bolt secured to theother plate which extends into said end section having its unsecured endprovided with a head of greater diameter which haslongitudinally-disposed elongated pockets in its circumference; and aball seated in each of said pockets for interlocking said bolt and tube.

13. A combined sectional post and lock comprising two clamping-plates; ajointed tube one section of which is suitably secured to and projectsfrom one of said plates, and the opposite end section is removablysecured thereto, the opening in the unsecured end of which is restrictedin diameter, and has a circumferentially-corru gated interior surface; abolt secured to the other plate which extends into said end sectionhaving its unsecured end provided with a head of greater diameter whichhas longitudinally-disposed elongated pockets in its circumference;` andaball seated in each of said pockets for interlocking said bolt andtube.

14; A combined sectional post and lock comprising two clamping-plates; ajointed tube one section of which is suitably secured to and projectsfrom one of said plates, and the opposite end section is removablysecured thereto, the opening in the unsecured end of which is restrictedin diameter, and has an uneven interior surface; a rotatable boltsecured to the other plate which extends into said end section havingits unsecured end provided with a head of greater diameter which haslongitudinally-disposed elongated pockets in its circumference; and aball seated in each of said pockets for interlocking said bolt and tube.

In testimony whereof l'I hereunto set my hand this 11th day of May,1903.

ANDREW D.` HULQUIST.

Witnesses:

E. K. LUNDY, E. HART.

